It's extremely easy, seriously. You start with enough money to build a machine gun and power it up quite a bit, and that's enough until well through have the mission, when you'll have plenty of money for anything you want... No strategy involved
vanilla it sounds like you're having a different issue. I released the update and it should fix the main saving issue, but it appears that your sol file is dissapearing, that's a whole different problem on your part.
Save fix is live, shouldn't be any more issues. But please, for your own good, MAKE SURE YOU ALLWAYS CLOSE YOU BROWSER PROPERLY. Also, use Fire Fox. Not for my game, just use it :D
@tycomp: You'd have to be unaware of the english language or simply a moron, to not understand it's a chatting game after reading the description. No offense to you, btu it can't get easier to understand than that. The very first sentence explains it all.
 "GlueFO 2.0"){kind=icon}
 "Frontline Defense Beta 2"){kind=icon}
 "A Knight's Story"){kind=icon}
 "Colourshift"){kind=icon}
 "Sorcery Quest"){kind=icon}
 "The Great Sperm Race"){kind=icon}
 "Drift Runners"){kind=icon}
 "Knightfall"){kind=icon}
 "Portal Defenders"){kind=icon}
 "Music Catch 2"){kind=icon}